Special welding machine and welding process for all position automatic pipeline welding

A special arc energy regulator is developed to realize the all postion automatic root welding of pipeline welding.This generator adopting the self-adaption technology of short circuit energy and burning energy, breakthrough conventional matching relationship of the output voltage and the wire speed for the GMAW.Ensure the arc stability under the lower voltage and higher current, to adapt the high energy input of the all position root welding of pipeline.